MESON Chess Problem Database

Problem Display
PID: 78437 (3K1n2/3RQ3/1p1PBp2/6b1/1N2kpN1/2R5/5B2/8 w - - 0 1)

Grossi, Damien

La Cle, 1971

3K1n2/3RQ3/1p1PBp2/6b1/1N2kpN1/2R5/5B2/8

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe6+
      • 2.Qxe6#
    • 1...Sxd7
      • 2.Bxd7#
    • 1...f3
      • 2.Rc4#
    • 1...f5
      • 2.Bd5#
  • Tries
    • 1.Sxf6+?
      • 1...Ke5
        • 2.Sd3#
        • 2.Sc6#
      • 1...Bxf6!
    • 1.Ba2+?
      • 1...Se6+
        • 2.Qxe6#
      • 1...Kf5!
    • 1.Bb3+?
      • 1...Se6+
        • 2.Qxe6#
      • 1...Kf5!
    • 1.Bc4+?
      • 1...Se6+
        • 2.Qxe6#
      • 1...Kf5!
    • 1.Bf7+?
      • 1...Se6+
        • 2.Qxe6#
      • 1...Kf5!
    • 1.Bg8+?
      • 1...Se6+
        • 2.Qxe6#
      • 1...Kf5!
    • 1.Rdc7?
      • threat
        • 2.R7c4#
      • 1...Sxe6+
        • 2.Qxe6#
      • 1...b5!
  • Keys
    • 1.Ra7!
      • threat
        • 2.Qb7#
      • 1...Sxe6+
        • 2.Qxe6#
      • 1...f3
        • 2.Rc4#
      • 1...Sd7
        • 2.Bxd7#
      • 1...f5
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(f);CHECK,OGATE,P_SPINS(f),XB(F)::QAR2(H),XS(f)
    • S(f);OGATE,XR(G)::QAR(H)+B(F),XS(f)
    • P(b);SBLOCK::R(B)
    • P(e);P_PINQ(H),SBLOCK::QAR(H)+B(F),DCHECK
  • Tries
    • Try
      • S(D);CHECK,XP(e)
      • Refutation
        • B(c);P_PINQ(H),XS(D)
    • Try
      • B(F);CHECK
      • Vars
        • S(f);CHECK,N_GUARD,P_SPINS(f)::QAR2(H),XS(f)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);CHECK
      • Vars
        • S(f);CHECK,N_GUARD,P_SPINS(f)::QAR2(H),XS(f)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);CHECK
      • Vars
        • S(f);CHECK,N_GUARD,P_SPINS(f)::QAR2(H),XS(f)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);CHECK
      • Vars
        • S(f);CHECK,N_GUARD,P_SPINS(f)::QAR2(H),XS(f)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);CHECK
      • Vars
        • S(f);CHECK,N_GUARD,P_SPINS(f)::QAR2(H),XS(f)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(G);
      • Threat
        • R(G)
      • Vars
        • S(f);CHECK,OGATE,P_SPINS(f),XB(F)::QAR2(H),XS(f)
      • Refutation
        • P(d);
  • Actual
    • R(G);
    • Threat
      • QAB(H)
    • Vars
      • S(f);CHECK,OGATE,P_SPINS(f),XB(F)::QAR2(H),XS(f)
      • P(b);SBLOCK::R(B)
      • S(f);N_GUARD::QAR(H)+B(F),XS(f)
      • P(e);P_PINQ(H),SBLOCK::QAR(H)+B(F),DCHECK
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